December weather forecast
Kostelní Vydří, Czech Republic

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Weather in December

December, the first month of the winter in Kostelní Vydří, is also an icy month, with an average temperature fluctuating between 2.1°C (35.8°F) and -2.6°C (27.3°F).

Temperature

December indicates a minor shift in the average high-temperature, from November's frosty 6.5°C (43.7°F) to a cold 2.1°C (35.8°F). Kostelní Vydří maintains a near steady average temperature of -2.6°C (27.3°F) during the nights of December, demonstrating little drop from daytime highs.

Humidity

In Kostelní Vydří, Czech Republic, the average relative humidity in December is 88%.

Rainfall

In Kostelní Vydří, in December, it is raining for 8.1 days, with typically 30mm (1.18") of accumulated precipitation. In Kostelní Vydří, during the entire year, the rain falls for 152.4 days and collects up to 482mm (18.98") of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Kostelní Vydří, in December, during 9.6 snowfall days, 75mm (2.95") of snow is typically accumulated. In Kostelní Vydří, during the entire year, snow falls for 46.1 days and aggregates up to 354mm (13.94") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 18min of daylight.
On the first day of December, sunrise is at 07:31 and sunset at 16:03. On the last day of the month, sunrise is at 07:52 and sunset at 16:10 CET.

Sunshine

In Kostelní Vydří, the average sunshine in December is 4.1h.

UV index

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 in December translates into these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Kostelní Vydří, is 2.1°C (35.8°F) and the average low-temperature is -2.6°C (27.3°F).

What is the average humidity in December?

In Kostelní Vydří, the average relative humidity in December is 88%.

How many days does it rain in December?

In December, the rain falls for 8.1 days. Throughout December, 30mm (1.18") of precipitation is accumulated.

How many days does it snow in December in Kostelní Vydří?

In Kostelní Vydří, in December, during 9.6 snowfall days, 75mm (2.95") of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 18min of daylight.

What is the average length of the day in December?

The average day length in December is 8h and 18min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 07:31 and sunset at 16:03. On the last day of the month, sunrise is at 07:52 and sunset at 16:10 CET.

How long on average sun shines in December?

In Kostelní Vydří, the average sunshine duration in December is 4.1h.

What is the UV index reading in December?

In Kostelní Vydří, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kostelní Vydří, Czech Republic

Average temperature in December - Kostelní Vydří, Czech Republic
  • Average high temperature in December: 2.1°C

The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (0°C).

  • Average low temperature in December: -2.6°C

The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (-4.7°C).

Average pressure in December
Kostelní Vydří, Czech Republic

Average pressure in December - Kostelní Vydří, Czech Republic
  • Average pressure in December: 1019.5mbar

The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is June (1015.4mbar).

Average wind speed in December
Kostelní Vydří, Czech Republic

Average wind speed in December - Kostelní Vydří, Czech Republic
  • Average wind speed in December: 15.3km/h

The windiest month (with the highest average wind speed) is December (15.3km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

Average humidity in December
Kostelní Vydří, Czech Republic

Average humidity in December - Kostelní Vydří, Czech Republic
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (72%).

Average rainfall in December
Kostelní Vydří, Czech Republic

Average rainfall in December - Kostelní Vydří, Czech Republic
  • Average rainfall in December: 30mm

The wettest month (with the highest rainfall) is June (77mm).
The driest month (with the least rainfall) is November (18mm).

Average rainfall days in December
Kostelní Vydří, Czech Republic

Average rainfall days in December - Kostelní Vydří, Czech Republic
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in December
Kostelní Vydří, Czech Republic

Average snowfall in December - Kostelní Vydří, Czech Republic
  • Average snowfall in December: 75mm

The month with the highest snowfall is January (108mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Kostelní Vydří, Czech Republic

Average snowfall days in December - Kostelní Vydří, Czech Republic
  • Average snowfall days in December: 9.6 days

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Kostelní Vydří, Czech Republic

Average daylight in December / Average sunshine in December - Kostelní Vydří, Czech Republic
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Kostelní Vydří, Czech Republic

Average sunshine days in December - Kostelní Vydří, Czech Republic
  • Average sunshine days in December: 15 days

The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is June (7.6 days).

Average UV index in December
Kostelní Vydří, Czech Republic

Average UV index in December - Kostelní Vydří, Czech Republic
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in December
Kostelní Vydří, Czech Republic

Average cloud cover in December - Kostelní Vydří, Czech Republic
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Kostelní Vydří, Czech Republic

Average visibility in December - Kostelní Vydří, Czech Republic
  • Average visibility in December: 8km

The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).

Kostelní Vydří, Czech Republic

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